Sustained release compositions
US4528125A · kind A · utility
11Cited by
9References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 3, 1983 |
| Grant date | Jul 9, 1985 |
| Priority date | — |
| Expiry date | Mar 3, 2003 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q13/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Dispersions capable of the sustained release of active organic agents comprising an aqueous dispersion of a water-insoluble cellulose ether which cellulose ether particles have reversibly diffused therein the active agent. The dispersions may be used as dispersions, dewatered to form a powder, or coalesced to form films or other articles all of which are capable of sustained release of the active agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.